Dissociation of carbon dioxide in an Al/Al2O3 microchannel plasma reactor at atmospheric pressure
Shin, Chul
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https://hdl.handle.net/2142/78505
Description
Title
Dissociation of carbon dioxide in an Al/Al2O3 microchannel plasma reactor at atmospheric pressure
Author(s)
Shin, Chul
Issue Date
2015-04-28
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Microchannel Plasma
Carbon dioxide (CO2) dissociation
Abstract
The dissociation of CO2, using a microcavity plasma in an Al/Al2O3 reactor flowing pure CO2 is
achieved with a maximum energy efficiency of 12.4%. This figure corresponds to a maximum
dissociation rate of ~70 g/kWh. Additionally, optical emission spectra in UV and visible regions
show the evidence of CO2 dissociation. This thesis compares favorably to other methods, even
those operating at sub-atmospheric pressures, and is achieved here at atmospheric and even superatmospheric pressures. This is important because not only is CO2 problematic in terms of its environmental impact, but the primary product of dissociation, CO, is used as a reducer gas in the
production of industrially valuable chemicals such as methanol and formic acid.
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